YAML In One Blog:

This is one of the most important topics and easiest also in DevOps. Learn about it in this Blog. You only require this blog to learn YAML completely.

What is Yaml?

YAML (Yet Another Markup Language) is a human-readable data serialization format that is used to represent and store data structures and objects. It is used to encode data structures in a plain-text format, making it easier to read and write than other commonly used data formats like XML and JSON.

YAML is designed to be simple and straightforward, using indentation and minimal syntax to define the structure of the data. This simplicity makes it an ideal choice for configuration files, data exchange between different systems, and other applications where readability and ease of use are important.

Key Features:

Some of the key features of YAML include:

Human-readable: YAML is designed to be easy to read and write, making it accessible to people with limited technical knowledge.
Indentation-based: YAML uses indentation to define the structure of the data, making it easy to see the hierarchy of objects and data elements.
Supports multiple data types: YAML supports various data types including strings, numbers, booleans, arrays, and objects.
Lightweight: YAML files are typically smaller in size than other data formats, making it faster to read and write.
Easy to parse: YAML is easy to parse, making it a popular choice for configuration management systems and other applications where data needs to be processed.

YAML is widely used in various programming languages, including Python, Ruby, and PHP, and is a popular choice for configuration management systems like Ansible, Jenkins, and Travis CI.

In conclusion, YAML is a simple and straightforward data serialization format that is designed to be easy to read and write. Its simplicity and support for multiple data types make it an ideal choice for configuration files, data exchange between different systems, and other applications where readability and ease of use are important.

Commands in YAML:

'.yaml' or '.yml' is used to define the file as a YAML file.

YAML syntax consists of key-value pairs and uses indentation to define the structure of the data. The basic building blocks of YAML are:

Scalar values: These are single values, such as strings, numbers, and booleans. They are represented as plain text and can be enclosed in quotes if necessary.

Example:
```
 name: John Doe
 age: 30
 is_admin: true
```
Lists: Lists are sequences of values, represented by a series of scalar values separated by dashes (-)

Example:
```
 fruits:
   - apples
   - bananas
   - oranges
```
Dictionaries: Dictionaries are collections of key-value pairs, represented by a series of scalar keys and values indented under the key.

Example:
```
 person:
   name: John Doe
   age: 30
   is_admin: true
```

In YAML, the data type of a scalar value is determined by its contents. For example, if a value starts with a digit, it is treated as a number. If a value is enclosed in quotes, it is treated as a string. If a value is one of the special strings true, false, yes, or no, it is treated as a boolean.

In addition to these basic data types, YAML also supports more advanced data structures such as nested lists and dictionaries, as well as various data structures used in specific programming languages, such as dates, timestamps, and regular expressions.

In conclusion, YAML supports a range of data types, including scalar values, lists, and dictionaries, and its syntax is designed to be simple and intuitive, making it easy to use for a wide range of applications.

Conclusion

In conclusion, YAML is a human-readable data serialization format that is widely used for its simplicity, readability, and support for multiple data types. Its key-value pair syntax and indentation-based structure make it a popular choice for configuration files, data exchange between different systems, and other applications where readability and ease of use are important. YAML is supported by many programming languages and is commonly used in configuration management systems, making it a valuable tool for developers and systems administrators alike.

YAML is also used in Docker, Kubernetes and stuff so remaining we will cover them in the upcoming days, so till that Good Bye! Hope you liked the content.

Handwritten Notes:

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